docs: def load_pkcs12(self, key):
          """
          This function fills the context public_key, private_key and x509 from 
          PKCS12 Object
          :param key: the PKCS12 Object
          :type key: OpenSSL.crypto.PKCS12
          :return: None
          """
          self.x509 = key.get_certificate().to_cryptography()
          self.public_key = key.get_certificate().to_cryptography().public_key()
          self.private_key = key.get_privatekey().to_cryptography_key()